Node localization algorithm based on RSSI in wireless sensor network

Author

Wang Suzhe ; Li Yong

Author_Institution

Sch. of Electron. & Inf., Northwestern Polytech. Univ., Xi´an, China

fYear

2012

fDate

12-14 Dec. 2012

Firstpage

1

Lastpage

4

Abstract

In order to reduce the effect on node positioning accuracy due to received signal strength (RSSI) fluctuation in wireless sensor network (WSN), a grid localization algorithm based on RSSI probability distribution is proposed. From analyzing the wireless propagation channel model, it divides the location area into grids. Through comparing the value of RSSI probability likelihood function in grid, the location of the unknown node is obtained. The simulation result shows that this algorithm could effectively improve the performance of positioning accuracy and have better stability.

Keywords

probability; radio direction-finding; wireless sensor networks; RSSI probability likelihood function; WSN; grid localization algorithm; node localization algorithm; node positioning accuracy; received signal strength fluctuation; wireless propagation channel model; wireless sensor network; Likelihood Function; Localization; RSSI; Wireless Sensor Network;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and Communication Systems (ICSPCS), 2012 6th International Conference on

Conference_Location

Gold Coast, QLD

Print_ISBN

978-1-4673-2392-5

Electronic_ISBN

978-1-4673-2391-8

Type

conf

DOI

10.1109/ICSPCS.2012.6507963

Filename

6507963